WARNING: CPU: 1 PID: 20540 at fs/open.c:778 do_dentry_open+0x4ad/0xe40 fs/open.c:778
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 20540 Comm: syz-executor6 Not tainted 4.17.0+ #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:do_dentry_open+0x4ad/0xe40 fs/open.c:778
Code: 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 15 08 00 00 48 c7 43 28 00 00 00 00 e8 f3 6d ba ff <0f> 0b e8 ec 6d ba ff 48 8d 43 18 41 be ed ff ff ff 48 89 45 c0 e9 
RSP: 0018:ffff88017474f7c8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8801b2575a40 RCX: ffffc900098d1000
RDX: 00000000000001d5 RSI: ffffffff81bfcf6d RDI: ffff8801b2575a68
RBP: ffff88017474f840 R08: ffff880172b88340 R09: ffffed0036d1a180
R10: ffffed0036d1a180 R11: ffff8801b68d0c03 R12: ffff88017a4114f0
R13: ffff88017a4116e8 R14: 0000000000000000 R15: ffff8801b2575abc
 vfs_open+0x139/0x230 fs/open.c:908
 do_last fs/namei.c:3370 [inline]
 path_openat+0x1717/0x4dc0 fs/namei.c:3511
 do_filp_open+0x249/0x350 fs/namei.c:3545
 do_sys_open+0x56f/0x740 fs/open.c:1101
 __do_sys_open fs/open.c:1119 [inline]
 __se_sys_open fs/open.c:1114 [inline]
 __x64_sys_open+0x7e/0xc0 fs/open.c:1114
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4559f9
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f81ad225c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f81ad2266d4 RCX: 00000000004559f9
RDX: 00000000000000c8 RSI: 0000000000000100 RDI: 0000000020000240
RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004e9bff R14: 00000000004ceed8 R15: 0000000000000001
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..